Lubricant purifier



C. A. WlNSLOW ET AL April 4, 1944.

LUBRI CANT PURI'FIKER Filed Feb. 1s, 1942 INVENTORS 4. W//vsLaw Y ATTORNEY l :Il lin l?. Elli. l .llli lill A CHAeLss BLYAUQENCE L. Moons Patented Apr. 4, 1944 2,345,849 LUBRICANT PURIFIER Charles A. Winslow and Laurence L. Moore, Oakland, Calif., assignors to Winslow Engineering Co., Oakland, Calif., a partnership consisting of Charles A. Winslow, Catherine B. Winslow, Laurence L. Moore, and William G. Nostrand Application February 13, 1942, Serial No. 430,749

3 Claims., (Cl. 21o-148) 'Ihe present invention relates to oil conditioners and oil purifiers for use particularly with internal combustion engines; this application being a continuation in part of our copending application, Serial Number 258,653, led February 27, 1939, now Patent No. 2,314,640, issued March 23, 1943.

A particular object of the invention is to provide such an oil conditioning replacement eletory to the fabric casing Bbeng filled and stuffed with a compacted mass of suitable filtering material, preferably a mixture of cotton waste and Wood shavings I0. The fabric -sleeve 6 and the ment, suitable to various standard types of oil 10 tube 5 form between them an annular pocket, purifiers. Another object is the provision of an when distended, to receive said filtering material. oil conditioning element which is relatively free The pocket is held inopen-position while being flowing and flexible, thus providing a construcfilled ly means ofda sgrling claniirli1 ldl E?! form 2 tion which permits a maximum flow rate through near i s upper en en so e e upper the element for the purpose of bringing the fluid and heretofore free end of the fabric is released to be ltered and processed into Contact with from clamp ll and drawn in. Compressed and the materials in the element for the purpose of sealed Vby a second flanged bushing l2, identical changing the nature of deleterious substances with the bushing 8 at the other end of the tube. contained in the lubricating oil, fuel oil or other The element is then completed and may be fluids to be reconditioned and cleaned. A furremoved from the cup 2 and Stud 4 and is ready kther object is the provision of a flexible hollow for use. This element is flexible and normally casing, preferably of tubular form and composed grows 1n volume as deleterious substances are of knitted materials incasing combined and mixed collected and absorbed Within the body of the fibrous and porous materials, such as cotton and element. It is thus evident that the exterior l wood fibers, into a knitted tube, with a novel surfac ist itpanded and the intlerioi; is lesmmeans of closing the ends of the filled tube in DI'eSSe a e Cere. Xpel ence es allg 11S conjunction with a central, hollow, perforate, u lat this action is best @named by Caushing the Supporting member the filtering O11 t0 now from the entlre exposed exterior Surmaterial, packed within the tube, is prevented 'lchoi; :lgeelgeollgrgcomg (fse' fr m colla se.

(eferrm to the accompanying drawing: swelling` of the element bodynaturally opens up Fig. l is a vertical section of a form used in the porosltyon th? exten Surace Whlch not the manufacture of our conditioning element. olly pregfentslfloggmg otr the outslde slrfac but Fig. 2 is a vertical section, illustrating the afs() con muayhprqsen s new expose. sur aces arly stage of constructing our element. o .the uriusfed C emlcauy treated punfying ma" e t terials within the body of the element itself. F 1g' 3 s hows the element m mcompe Sta e The element as thus completed consists of a m the fmmg for@ of Flg' 1' ready for mg vcylindrical structure of a predetermined com- Fig. 4 isa vertical, central section of the compacted mass of mtering material surrounding a pletled element const'ituing lthe present 1nvention. 40 rigid hollow perforated support which is open Fig. 5 illustrates, 1n partial section, a suitable from end toend. v container for the presentl invention, the latter wherein in our earlier application above re being shown in partial section to denote the mode ferred to, We have stressed a conditioning ele l 0f 115ev ment employing two plies of fabric, in the pres- Refeflng t0 the drawing 2 represents a cylm 45 ent instance it is noted that we have a single drical metal cup or hollow form, with a bottom 3 ply which for ce1-tam conditions ls found to be from which springs a central stud 4 coaxial with ample, i the cup. 5 is a perforated, flanged tube, substan- The mode of use is illustrated in Fig 5l in tally the length 0f the finished article and large which 50 indicates a suitable container in the enough t0 be slipped readily OVeI' the Stud 2 50 form of a cylindrical shell with a bottom fitting 6 is a porous knitted sleeve of fabric which is 5I. 52 designates a removable cover,- held in slipped Over the tube 5, with one end tucked into place by a, central hollow stud 53, to which is at- Y the tube, as at 1, and tightly held there by means tached a, handle 54. An oil inlet and an outletv of a flanged hollow stopper or bushing 8 which 56 are provided in the fltting 5I which also protelescopes with a tight friction nt the tube 5 and l5 vides a threaded portion 58,1nto which the hollow central stud Il is threaded. A spring n is provided which insures an even upward pressure on the washer il .below the element l2 which constitutes the invention above described. In some installations it is desirable to screw the hollow stud il rigidly into the bottom iitting 5I and screw oi! the handle part 54 to remove the cover when changing elements. In other cases it may be desirable to attach rigidly the handle part 5l to the central tube and unscrew the assembly from the bottom fitting 6I when changing elements. In either case the compression spring il kicks out the used element when the cover is removed.

With the filtering element housed in such a container, it is always clear of the shell and also l free of sludge during its normal life. It will be above the shell and can come out free when the cover is removed. In view of the fact that the novel structure of the element actually grows or expands in service and also since common crankcase sludge. when broken down into its simpler forms of materials, occupies considerable less space, the element is many times greater in both clean-up rate and long life.

What we claim is:

l. An oil conditioner element comprising a cylindrical body with a central, cylindrical, hollow, rigid,vperforate core, a tubular fabric casing having its ends secured to corresponding ends of the core, the ends of the fabric casing passing over the respective ends-of the core, the means for securing said ends of the tubular fabric cylindrical tubular fabric casing, a compacted mass of illtering material within the tubular fabric casing, the casing enclosing only the outside exposed peripheries o! the element, a hollow, central, rigid, perforate core extending longi- :tudinally within the element, the ends of the tubular fabric casing being tucked into the respective ends oi the core, and a hollow stopper member telescoping each end of the core and clamping the ends of the i'abric casing against the core, the element being open from end to end through the core and said stopper members.

3. An oil conditioner element comprising an inside perforated core member, an outer pervious casing member, the ends of the casing member passing over respective ends of the core member, a cylindrical mass of filtering material eny 

